EP 1623472 B1 20180808 - END CAP SEAL ASSEMBLY FOR AN ELECTROCHEMICAL CELL
Title (en)
END CAP SEAL ASSEMBLY FOR AN ELECTROCHEMICAL CELL
Title (de)
ENDKAPPENDICHTBAUGRUPPE FÜR EINE ELEKTROCHEMISCHE ZELLE
Title (fr)
ENSEMBLE CAPUCHON DE SCELLEMENT POUR PILE ELECTROCHIMIQUE
Publication
Application
Priority
- US 2004008253 W 20040318
- US 39749403 A 20030326
Abstract (en)
[origin: US2004191610A1] An end cap seal assembly for an electrochemical cell such as an alkaline cell is disclosed. The end cap assembly comprises a convoluted end cap which may also function as a cell terminal and an underlying insulating sealing disk. The insulating sealing disk comprises a central boss and radially extending arm terminating in a downwardly sloped elbow and upwardly sloped peripheral edge. The end cap disk has at least one vent aperture therethrough which faces the ambient environment. The insulating disk has an annular groove in its top or bottom surface, which preferably circumvents the central boss. The base of the groove defines an a rupturable membrane portion of the insulating sealing disk. The rupturable membrane is designed to rupture, preferably when the cell internal gas pressure reaches a level between about 150 and 900 psig (1034x10<3 >and 6206x10<3 >pascal gage) advantageously, between about 150 and 700 psig (1034x10<3 >and 4827x10<3 >pascal gage).
IPC 8 full level
H01M 2/04 (2006.01); H01M 2/12 (2006.01); H01M 10/24 (2006.01)
CPC (source: EP US)
H01M 50/154 (2021.01 - EP US); H01M 50/325 (2021.01 - EP US); H01M 50/3425 (2021.01 - EP US); H01M 10/24 (2013.01 - EP US); Y02E 60/10 (2013.01 - EP); Y02P 70/50 (2015.11 - EP)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
US 2004191610 A1 20040930; US 6991872 B2 20060131; BR PI0408710 A 20060307; CN 101393997 A 20090325; CN 101393998 A 20090325; CN 101393999 A 20090325; CN 1985383 A 20070620; EP 1623472 A2 20060208; EP 1623472 B1 20180808; JP 2006521674 A 20060921; JP 4820748 B2 20111124; WO 2004095610 A2 20041104; WO 2004095610 A3 20051201
DOCDB simple family (application)
US 39749403 A 20030326; BR PI0408710 A 20040318; CN 200480008132 A 20040318; CN 200810149248 A 20040318; CN 200810149249 A 20040318; CN 200810149250 A 20040318; EP 04759646 A 20040318; JP 2006507305 A 20040318; US 2004008253 W 20040318